#import "ViewController.h"
#import "QSSDateHelper.h"
@interface Viewcontroller ()
@property (Nonatomic,strong) UIButton *btn;
@property (nonatomic,assign) BOOL Istouch;
@property (nonatomic,assign) Nsinteger time;
@property (nonatomic,assign) int year;
@property (nonatomic,assign) int mouth;
@property (nonatomic,assign) int day;
@property (nonatomic,assign) int hour;
@property (nonatomic,assign) int minute;
@property (nonatomic,assign) int second;
@property (nonatomic,assign) int mytouchsecond;
@property NSDate *touchdate;
@property Nscalendar *cal;
@property Nstimer *timer;
@end
@implementation Viewcontroller
-(void) Viewdidload {
[Super Viewdidload];
[Self initbtn];
Self.istouch=no;
}
-(void) dealloc{
[Self.timer invalidate];
Self.timer=nil;
self.time=0;
}
-(void) initbtn{
Self.btn=[[uibutton alloc]initwithframe:cgrectmake (100, 100, 100, 100)];
[Self.btn settitle:@ "Countdown" forstate:uicontrolstatenormal];
[Self.btn Setbackgroundcolor:[uicolor Lightgraycolor];
[Self.view ADDSUBVIEW:SELF.BTN];
[Self.btn addtarget:self Action: @selector (Releasetime) forcontrolevents:uicontroleventtouchupinside];
}
-(void) Timerfiremethod: (Nstimer *) timer{
NSDate *DD = [NSDate DateWithTimeIntervalSince1970:self.myTouchSecond];
int targetsecond = Self.mytouchsecond + 10*60;//target time
Converts the target's number of seconds to a fixed-format number of seconds
NSDate *DD = [NSDate Datewithtimeintervalsince1970:targetsecond];
unsigned int time2=nscalendarunityear| nscalendarunitmonth| nscalendarunitday| nscalendarunithour| nscalendarunitminute| Nscalendarunitsecond;
Nscalendar *cal=[nscalendar Currentcalendar];
Nsdatecomponents *t2=[cal components:time2 FROMDATE:DD];
================== Start the timing time =====================
unsigned int time=nscalendarunityear| nscalendarunitmonth| nscalendarunitday| nscalendarunithour| nscalendarunitminute| Nscalendarunitsecond;
Nsdatecomponents *t=[self.cal Components:time FromDate:self.touchDate]; Time to start timing
NSLog (@ "Start countdown time:%d days%d hours%d minutes%d seconds", (int) t.day, (int) t.hour, (int) t.minute, (int) t.second);
================== Target Time ==========================
NSLog (@ "Target time:%d days%d hours%d minutes%d seconds", (int) t2.day, (int) t2.hour, (int) t2.minute, (int) t2.second);
Target time
Nscalendar *calendar = [Nscalendar Currentcalendar];
Nsdatecomponents *components = [[Nsdatecomponents alloc] init];
[Components SetYear:t2.year];
[Components SetMonth:t2.month];
[Components SetDay:t2.day];
[Components SetHour:t2.hour];
[Components SetMinute:t2.minute];
NSLog (@ "Minute +++++%d", self.minute+10);
[Components SetSecond:self.second];
unsigned int unitflags = Nscalendarunityear | Nscalendarunitmonth | Nscalendarunitday | Nscalendarunithour | Nscalendarunitminute | Nscalendarunitsecond;
NSDate *firedate = [Calendar datefromcomponents:components];//target time
NSDate *nowhhhhh=[nsdate Date];
nsdatecomponents *d = [Calendar components:unitflags fromdate:nowhhhhh todate:dd options:0];//Calculate time difference
Uialertview *alert=[[uialertview alloc]initwithtitle:[nsstring stringwithformat:@ "%d minutes%d seconds", (int) [D minute], (int) [D Second]] message:@ "Countdown" Delegate:self cancelbuttontitle:@ "I Know" otherbuttontitles:nil, nil];
alert.delegate=self;
[Alert show];
}
-(void) releasetime{
self.time++;
Self.istouch=yes;
if (self.time==1) {
NSLog (@ "Start Countdown");
This method is called only once at the current time ...
NSDate *now=[nsdate Date];
Nscalendar *cal=[nscalendar Currentcalendar];
unsigned int time=nscalendarunityear| nscalendarunitmonth| nscalendarunitday| nscalendarunithour| nscalendarunitminute| Nscalendarunitsecond;
Nsdatecomponents *t=[cal Components:time Fromdate:now];
self.year= (int) [T year];
self.mouth= (int) [T month];
self.day= (int) [T day];
self.hour= (int) [t hour];
self.minute= (int) [t minute];
self.second= (int) [T second];
Nstimeinterval time2=[[nsdate Date] timeIntervalSince1970];
Self.mytouchsecond = time2;
NSLog (@ "date\n%d", Self.mytouchsecond);
Self.touchdate=now;
self.cal=cal;
}else{
Self.timer=[nstimer scheduledtimerwithtimeinterval:1.0 target:self selector: @selector (timerfiremethod:) UserInfo: Nil Repeats:no];
[Self.timer setfiredate:[nsdate Distantpast];
}
}
-(void) didreceivememorywarning {
[Super didreceivememorywarning];
}
@end
IOS Implementation Countdown
